What is the solution of the proportion 3/5=13/x ? Round to the nearest tenth if necessary.

Answers

Answer 1

Answer:  x = 21 2/3

Step-by-step explanation:

3/5 = 13/x

cross multiply  5 × 13,  then divide  by 3.  

65/3 = 21 2/3

It's like multiplying both sides by the reciprocal of the left side.


Related Questions

The LA Dogers hit the most home runs in 2014. The number of home runs accounted for 6% of the entire major league Baseball home run count.If 583 total home runs were hit, then how many did the LA Dogers hit

Answers

Given:

Total number of home runs = 583

Home runs hit by LA Dogerse = 6% of the total home runs

To find:

The number of home runs hit by LA Dogers.

Solution:

We have,

Home runs hit by LA Dogerse = 6% of the total home runs

                               [tex]=\dfrac{6}{100}\times 583[/tex]

                               [tex]=\dfrac{3498}{100}[/tex]

                               [tex]=34.98[/tex]

                               [tex]\approx 35[/tex]

Therefore, LA Dogerse hits about 35 home runs.                            

17 out of 25 students carried blue mesh backpacks. What percent of the students had blue mesh backpacks?

Answers

Answer:

68

Step-by-step explanation:

multiply 17 by 4

Answer:

68%

Step-by-step explanation:

25 x 4= 100

17 x 4= 68

so 17/25 is equal to 68/100

Hope this helps!

A scientist measures the temperature of a chemical solution. At the start of the experiment, the solution is at a temperature of -14.06*C. TH decreases 2.9°C each hour. What is the temperature of the solution after 3 hours, rounded to the nearest whole degree?​

Answers

Answer:

T(3) = -23°C

Step-by-step explanation:

Constant Rate of Change

Given an initial condition of a variable T, To and a constant rate of change m, it's possible to write a model to predict the value of T in time t:

[tex]T(t)=T_o+mt[/tex]

The initial temperature the scientist measures of a chemical solution is To=-14.06°C.

It's known the temperature decreases at a constant rate of -2.9°C each hour, thus the model is:

[tex]T(t)=-14.06-2.9t[/tex]

Evaluating at t=3 hours:

[tex]T(3)=-14.06-2.9\cdot 3[/tex]

[tex]T(3)=-14.06-8.7[/tex]

T(3) = -22.76°C

Rounding to the nearest whole degree:

T(3) = -23°C

1. Multiply using distributive property.
(4x - 2)(x - 3)


Please help me answer.

Answers

Answer: 4x-6

Step-by-step explanation: Combine like terms. 4x*x is 4x and -2*-3 is -6. That is how you find the answer.

Answer:

4x²-14x+6

Step-by-step explanation:

(4x · x - 4x ·3 - 2·x + 6) = 4x²-14x+6

What is the same value as 40% of 84 ??

Answers

Answer:

33.6

Step-by-step explanation:

thats what 40% of 84 is x.

Answer: 33.6

explanation: Convert 40% to a decimal and multiply that number by 84

s = ut + 1/2at squared
u = 10 a = -2 t = 1/2

Answers

Answer: 4.75

with u = 10, a = -2, t = 1/2

=> [tex]s=10.\frac{1}{2}+\frac{1}{2}. \frac{(-2).1}{4}=5-\frac{1}{4}=\frac{19}{4}=4.75[/tex]

Step-by-step explanation:

Find the length of side x in simplest radical form with a rational denominator.

WILL GIVE BRAINLIEST!!!

Answers

Answer:

x=3

Step-by-step explanation:

The triangle has angles 30,60,90

In this type of right triangle, the ratio of the sides is 1:square root of 3:2

In this type of triangle, the square root of 3 is equal to the 1 in the ratio above because it is across from the angle 30

With this, we multiply the ratio at the top by the square root of 3

since x is across the angle 60, we multiply square root of 3 by the square root of 3 which equals 3.

I hope this makes sense

Find an explicit rule for the nth term of the sequence.

-4, -8, -16, -32, ...

A) an = -4 • 2n - 1
B) an = 2 • -4n + 1
C) an = 2 • -4n
D) an = -4 • 2n

Answers

Answer:

An explicit rule for the nth term of the sequence will be:

[tex]a_n=-4\cdot \:2^{n-1}[/tex]      

Thus, option (A) is true.

Step-by-step explanation:

Given the sequence

[tex]-4, -8, -16, -32, ...[/tex]

A geometric sequence has a constant ratio r and is defined by

[tex]a_n=a_0\cdot r^{n-1}[/tex]

Computing the ratios of all the adjacent terms

[tex]\frac{-8}{-4}=2,\:\quad \frac{-16}{-8}=2,\:\quad \frac{-32}{-16}=2[/tex]

As the ratio 'r' is the same.

so

[tex]r=2[/tex]

as

[tex]a_1=-4[/tex]

Hence, the nth term of the sequence will be:

[tex]a_n=a_0\cdot r^{n-1}[/tex]

substituting the values [tex]r=2[/tex] and [tex]a_1=-4[/tex]

[tex]a_n=-4\cdot \:2^{n-1}[/tex]      

Therefore, an explicit rule for the nth term of the sequence will be:

[tex]a_n=-4\cdot \:2^{n-1}[/tex]      

Thus, option (A) is true.

What do variables and function have in common

Answers

A function is a mathematical relationship in which the values of a single dependent variable are determined by the values of one or more independent variables. Function means the dependent variable is determined by the independent variable(s)

SUPER EASY AND ILL GIVE BRAINLIEST

determine which of the following are functions
a. I and III only
b. II and IV only
c. II, III, and IV only
d. I, II, III and IV

Answers

Answer:

I and III only

Step-by-step explanation:

Answer:

2 and 5

Step-by-step explanation:

Make sure you use the vertical line to determine what is a function


3x - 4y = 32
5x+2y = 10

Answers

Answer:

Point Form:  ( 4 , − 5 )

Equation Form:  x  =  4 ,  y  =  - 5

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:  ( 4 , − 5 )

Equation Form:  x  =  4 ,  y  =  - 5

Answer:

(4, - 5)

Step-by-step explanation:

3x - 4y = 32 ........ (1)

5x + 2y = 10 ....... (2)

(2) × 2 + (1)

13x = 52 ⇒ x = 4

3(4) - 4y = 32 ⇒ y = - 5

(4, - 5)

Please show all work

Xavier ran 2.5 miles in 12 minutes. How long will it take him to run 1 mile?

Answers

Answer:

4.8 minutes

Step-by-step explanation:

2.5/2.5=1

so

12/2.5=4.8

Answer:

4.8 minutes per mile

Step-by-step explanation:

Let mi be miles

Let min be minutes

2.5mi = 12min

Divide by side by the mile to get the unit rate

2.5/2.5 = 12/2.5

You will get 1 = 4.8

Explain what is occurring in each chunk of the graph

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

As the given graph includes distance 'd' at the y-axis and time 't' at the x-axis.

so from the distance-time graph, it is clear that the graph includes 5 chunks.

The first chunk of the graph indicates that the object has started traveling. And the distance 'd' is being covered in time 't', as the slope is upward, hence the speed of the object is increasing.

Please note that speed is basically the distance covered per unit time.

The second chunk of the graph indicates the no distance is being covered. It means the object is at rest.

The third chunk of the graph indicates that the distance 'd' is being covered in time 't', as the slope is again upward, hence the speed of the object is increasing and the object has started traveling.

The fourth chunk of the graph indicates that the slope is downward, and the object has started traveling to get back to the destination, and eventually, the object has reached the starting point.

4b + 6 = 2 - b + 4
b = -2
b = 0
b = 4
b = 6​

Answers

4b + 6 = 2 - b + 4
4 b + b = 2 + 4 - 6
5b = 0
b = 0

I hope this helps!
Answer:

4b+6=2-b+4
4b+6=6-b
4b=-b
4b+b=0
5b=0
5b/5=0/5
b=0

I need HELPPPPP!!!!!!

Answers

Answer:

light blue

Step-by-step explanation:

A student collected monetary pledges for a fundraiser. One donor pledged to contribute $5 for each mile walked by the student during the fundraising walk up to a maximum of six miles.

A. is the situation continuous or discrete
B.write the domain and range of the situation



Answers

Answer:

A. The situation is discrete B. i. { x : 0 ≤ x ≤ 6; x ∈ Z} ii. { C = 5x : 0 ≤ C ≤ 30; C ∈ Z}

Step-by-step explanation:

A. The situation is discrete since we have integral values for the amount paid per mile walked. The amount per mile is $5 and is only paid if a complete mile is walked. So, it is a discrete situation.

B. i. Since 0 miles represents 0 distance and the student walks a maximum of 6 miles, let x represent the distance walked. So the domain is 0 ≤ x ≤ 6 where x ∈ Z where Z represent integers.

{ x : 0 ≤ x ≤ 6; x ∈ Z}

ii. Since at 0 miles the amount earned is 0 miles × $5 per mile = $ 0 and at the maximum distance of 6 miles, the amount earned is 6 miles × $5 per mile = $ 30, let C represent the amount donated in dollars. So the range is 0 ≤ C ≤ $ 30 where C = 5x.

{ C = 5x : 0 ≤ C ≤ 30; C ∈ Z}

is 4/3 = 8/6 a proportional?

Answers

Answer:

its b

Step-by-step explanation:

b

Answer:

Yes 4/=8/6 are proportional

If you look at the first fraction 4/3 and multiply 2 by the denomenator and numerator it will equal to 8/6 . Now to switch it up 8/6 divided by 2 is 4/3 so yes the t2 fraction are proportional.

Step-by-step explanation:

If a video game was 10% off and the amount of the discount was $6 what was the original price?

Answers

Answer: the original price was $60! <3

Step-by-step explanation:

Si a/b=b/c=c/d=k ademas a/d=1/216 calcular b2/c2
pueden ayudarme con esto por favor, es urgente:(

Answers

Answer:

please mark me as brainlist

The value of the expression b²/c² is 46656.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

We can use the given equations to express a, b, c, and d in terms of k:

a/b = b/c = c/d = k

From a/d = 1/216,

we have:

a/d = k² / (c/d)

Substituting k = b/c and simplifying:

a/d = (b/c)² / (c/d)

a/d = b² / (c² x d)

Multiplying both sides by c².

(a/d) x c² = b² / d

Substituting k = c/d:

(a/d) x c² = b² / k

Substituting a/b = k and solving for b²/c².

a/b = k

a = k x b

b = a/k

b² = a²/k²

(b²/c²) = (a²/k²) / (a²/k² x (d/c)²)

(b²/c²) = 1 / (d²/k²)

Substituting k = c/d and simplifying:

(b²/c²) = d²

Substituting a/d = 1/216:

(b²/c²) = (216²)

Therefore,

The value of the expression b²/c² is 46656.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ3

The complete question is:

If a/b=b/c=c/d=k plus a/d=1/216 calculate b2/c2

Can you help me with this please, it's urgent?

Isabella pitches for her high school softball team. Of the 7 pitches she throws, 5 are strikes. She uses a standard deck of cards to model her pitches, with hearts, clubs, and spades representing strikes. Which statement about her model is true?
A- Her model can be improved the most by removing all the face cards from the deck. B-Her model cannot be improved. C-Her model can be improved the most by removing all the aces from the deck. D-Her model can be improved the most by removing the queens and kings of hearts, clubs, and spades.

Answers

Answer:

B. Her model cannot be improved.

Step-by-step explanation:

We make this conclusion because it seems Isabella's model isn't actually proffering any solution to increase/reduce the number of strikes she has had.

Hence, any changes made do not clearly seem to improve the present model she is using.

Answer:

The correct answer is D!

Step-by-step explanation:

if kevin took 1/10 of an hour to use 1/2 of package of napkins. how many hours would it take to use 2 packages?

Answers

Answer:

2/5 hours

Step-by-step explanation:

We can write a proportion to solve

1/10 hour          x hours

----------------   = -------------------

1/2 package        2 packages

Using cross products

1/10 * 2 = 1/2 x

1/5 = 1/2x

Multiply each side by 2

1/5 * 2 = 1/2x *2

2/5  =x

2/5 hours

Evaluate the expression 2(n + 1) - 5 using n=4

Answers

Answer:

5

Step-by-step explanation:

2(4+1)-5

2(5)-5

10-5

5

whoever hears this I want u to know that I am here for I will always be be and so will God. Things well get better I promise!! YOU have to go through the storm to get to the rainbow. TURN TO GOD he will always help u and he loves you and I do to and so does Jesus u got this. DONT GIVE UP and keep on pushing at the end it will all be worth it I promise AND GIVE YOUR LIFE TO JESUS he will help you

Answers

Answer:

im gay tho :)

Step-by-step explanation:

Answer:

atheists reading this :0

Step-by-step explanation:

this was a joke plz dont bully me

anyone stressed?? vent to me. and (so this will count as a question)
Laura earns $115 a month babysitting. If she saves all of the
money she earns in June and July and uses it to buy a bicycle
that cost $158, how much money will she have left?
A. $230,00
B. $43.00
C. $60.00
D. $72.00

Answers

Answer:72

Step-by-step explanation:

115+115=230

230-158=72

If you add the 115 a month that she earns from babysitting, then add both the months pay together, than subtract 158(cost of the bicycle) by the total pay, you should get 72$

Answer:  D. $72

Step-by-step explanation:

If she earns $115 a month and June and July is a combination of two months then we will have to find the amount she earn toegther in June and July by multiplying 2 by $115.

2(115) = 230

She earned $230 in those months, and if the bicycle cost $158 , then we will have to subtract $158 from $230 to find her remaining amount.

$230 - $158 = $72  

What is the slope of 3x-2y=7?

Answers

Answer:

The slope is -3/2

Step-by-step explanation:

Hope this helped have a good day!

Hi can someone help me please!
I’ll mark the first person to answer brainliest

Answers

1- 4/7 + 1/3
4/7 = 12/21 + 7/21 = 19/21
21/21 - 19/21 = 2/21
D would be the correct answer

gordon types 1800 words in 25 minutes. word per minute

Answers

Answer:

72

Step-by-step explanation:

words per minutes= 1800÷25=72

During Saturday’s game the football team gained 87 yards rushing and 213 yards passing how many more yards were gained passing than rushing.

Define a variable,write an equation, then solve.

Answers

the answer is 126 hope it helps

The equation would be x + 87 = 213

1 = 5x + 2; w = x^2 + 1
Can someone help me with this question?;(

Answers

From the first equation x=-1/5
So if x is -1/5 then substitute it into the second equation and you get W=11/9

Hope this helps x

Answer:

5x^3 + 5x+ 2x^2 + 2

Step-by-step explanation:

(5x+2)(x^2+1)

5x^3 + 5x+ 2x^2 + 2

What is the slope of the line that contains the points (4,3) and (2, 7)? A. - 5 B. 2 C. -2 O D. -5​

Answers

Answer:

C. -2

Step-by-step explanation:

hope that helps! :)

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